He couldn't be happier with his new fiance.

Charlie Sheen, 48, popped the questionto Brett Rossi, 24, in Hawaii this weekend, and she said yes! Sheen flew her on a private plane to the island as a surprise and she supposedly had no idea an engagement ring would follow.

After they shared an "epic" Valentine's Day, according to Rossi on Twitter, they watched the Saturday morning sun rise together and that's when he pulled out the ring.

Rossi shared that she couldn't be any happier and knew Sheen was her soulmate.

This will be Sheen's fourth marriage but sources close to him are saying he wants this relationship and marriage to Rossi to be the real deal this time around.

Sheen was happy to share the engagement news with his followers on Twitter too and in a sweet gesture, also showed Valentine love for his kids.